Not everything that was presented on the gamepad was available that's why it would work like those 6 icons and he could only press the Wii u gamepad one. He even says the only demo available was rayman legends that is why he couldn't play zombiu

Wow, the interface was actually smooth, I'm liking what I see... There was virtually no lag and when the video button was tapped, it left the interface open while still displaying the video on the screen, that's awesome! No more watching something till the very end and waiting until its over before selecting another title. Good stuff!